Mammals

E1. Dark

The dark, a world of opportunity for mammals. More than two-thirds prefer the cover of the night, with some now returning to the safety of the shadows in order to avoid us.

★ 7.7

E2. The New Wild

Mammals have mastered every environment on Earth, but today the planet is changing faster than ever. Mammals must change with it to have a chance of survival in this, the new wild.

★ 8.5

E3. Water

From freshwater jungle ponds to the dark depths of the open ocean, air breathing mammals have found remarkable ways to overcome the many challenges of a life in water.

★ 7.7

E4. Cold

From ice-covered seas to snow-capped mountains, mammals have conquered the cold, living in the harshest places on earth, thanks to their remarkable intelligence and adaptations.

★ 7.3

E5. Heat

From the barren Australian outback to the remote, dry deserts of Namibia, mammals use their ingenuity, incredible intelligence and remarkable resilience to beat the heat.

★ 8.0

E6. Forest

From deep in the undergrowth to the highest tree, forests are home to two-thirds of all mammal species. Discover how they overcome the many challenges of life in a crowded world.

★ 7.5